头文件： （MyROEdit.h）

#pragma once





// CMyROEdit



class CMyROEdit : public CEdit

{

	DECLARE_DYNAMIC(CMyROEdit)



public:

	CMyROEdit();

	virtual ~CMyROEdit();



protected:

	DECLARE_MESSAGE_MAP()

public:

	virtual BOOL PreTranslateMessage(MSG* pMsg);

	afx_msg void OnEnSetfocus();

};

cpp文件：（MyROEdit.cpp）

// MyROEdit.cpp : implementation file

//



#include "stdafx.h"

#include "MyROEdit.h"





// CMyROEdit



IMPLEMENT_DYNAMIC(CMyROEdit, CEdit)



CMyROEdit::CMyROEdit()

{

}



CMyROEdit::~CMyROEdit()

{

}





BEGIN_MESSAGE_MAP(CMyROEdit, CEdit)

	ON_CONTROL_REFLECT(EN_SETFOCUS, &CMyROEdit::OnEnSetfocus)

END_MESSAGE_MAP()







// CMyROEdit message handlers







BOOL CMyROEdit::PreTranslateMessage(MSG* pMsg)

{

	if ( pMsg->message == WM_KEYDOWN ){

		if ( ( ( pMsg->wParam == 'c' ) || ( pMsg->wParam == 'C' ) ) && (GetKeyState( VK_CONTROL) < 0) ){

			return CEdit::PreTranslateMessage(pMsg);

		}else{

			return TRUE;

		}

	}

	if ( pMsg->message == WM_RBUTTONDBLCLK || pMsg->message == WM_RBUTTONDOWN || pMsg->message == WM_RBUTTONUP){

		return TRUE;

	}



	return CEdit::PreTranslateMessage(pMsg);

}



void CMyROEdit::OnEnSetfocus()

{

	HideCaret();

}

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测试可用， 给了自己一个自定义类的思路！